Pith Number

pith:ZJFGZD72

pith:2021:ZJFGZD72CSTUW27SJIJVILGAKA

not attested not anchored not stored refs pending

Fast sensor placement by enlarging principle submatrix for large-scale linear inverse problems

Fen Wang, Gene Cheung, Taihao Li, Ying Du, Yu-Ping Ruan

arxiv:2110.02540 v2 · 2021-10-06 · eess.SP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZJFGZD72CSTUW27SJIJVILGAKA}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T03:20:38.402741Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ca4a6c8ffa14a74b6bf24a13542cc0503b4c2a5f563ab01fa488c60591351c7c

Aliases

arxiv: 2110.02540 · arxiv_version: 2110.02540v2 · doi: 10.48550/arxiv.2110.02540 · pith_short_12: ZJFGZD72CSTU · pith_short_16: ZJFGZD72CSTUW27S · pith_short_8: ZJFGZD72

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/ZJFGZD72CSTUW27SJIJVILGAKA \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: ca4a6c8ffa14a74b6bf24a13542cc0503b4c2a5f563ab01fa488c60591351c7c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f3390211dda75717cd1c8680a1c3b7cdb868b5a16bea0b9fb7e4f0b1ce03801a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2021-10-06T07:14:01Z",
    "title_canon_sha256": "05ef5f755459b1a8dc3f9aa6a9fcc424673f1d931d67bbbc835aa5211adcb22e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2110.02540",
    "kind": "arxiv",
    "version": 2
  }
}